Window



- W. S. SHIELDS.

WINDOW.

APPLICATION FILED NOV-14, 1919.

Patented Mar. 8, 1921.

A TTORAEYS UNITED STATES PATENT oFFflca.

WILLIAM SCOTT SHIE1JDS,.OF TRENTON, JERSEY.

. wmnow. h r

Specification of Letters Patent.

Patented Mar. 8, 1921.

Application iiled liovember 14, 1919. Serial No. 338,058.

To-aZZ w 710m it may concern Be it known that I, WILLIAM Soo'r'r.

SHIELDS, a citizen of the United States, and a resident of Trenton, in the county of Mercer and State of New Jersey, have invented certain new and useful Improvements in Windows, of which the following coaches and the like,.for making a close fitting joint between the sash and the window frame without the possibility of sticking, and which will compensate for wear.

In the drawings: 1

Figure 1 is a front view of a portion of a window frame and sash constructed in accordance with the invention;

Fig. 2 is a sectionon the line 2-2 of Fig. 1;

Fig. 3 is a similar view showing a modified construction; 3 p 1 Fig. 4 is a perspective view of one of the S g Fig. 5 is a view similar to Fig. 2 showing a modified construction. v

Fig. 6 is a view similar to Fig. 5 showing another embodiment of the invention.

In the embodiment of the invention shown in Figs. 1 and 2, a facing strip 3 is arranged on the inner face of the side of the window frame 1, and this strip has a groove 4 on its inner face, and the strip is secured to the side member of the window or frame by screws 6 or the like. j

The sash 7 has its side members longitudinally grooved, as indicated at 8, to form two tongues 9 which extend the full length of the window sash. Referring to Fig. 2

it will be noticed that each side member 0 the sash is reduced slightly on each side, the reduced portions extending near to the free edge of the side member and having a width greater than the depth of the groove 4, and the groove 8 is so formed that the tongues 9 are farther apart at the mouth of the groove than at the bottom.

The tongues are resilient to a certain extent and they are normally forced away from each other by plate springs 10 which are arranged within the grooves at spaced intervals, and they are curved longltudinally, as shown, to exert a spreading action on the tongues. Thus the tongues are forced firmly into contact with the side walls of the groove 4 and any wear will be compensated for to prevent rattling of the sash in the window frame. A portion of the outer face of each tongue is plane, and in the plane of the face of the sash, and these plane portions fit smoothly against the inner faces of the groove 4 at the bottom thereof.

There can be no sticking of the sash in its grooves, because of the resilient yielding construction of that portion of the sash which engages the groove. Referring to Fig. 2, it will be seen that the depth of the groove 8 is slightly greater than the depth of the groove 4.

In Fig. 3 there is showman arrangement especially adapted for use with plate glass, wherein no supporting frame is used. In

this construction the strip 11 which come sponds to the strip 3 of Fig. 2 is arranged within a rabbet in the side member 12 of the window frame. This strip has'the groove 13 corresponding tothe groove 4, and at each side of the sash 14, which is merely a plate of glass, a pair of strips 15 is secured by means of screws 16 or the like.

These strips are of a width to extend to the bottom of the grooves 13 and they are normally pressed away from each other by springs 1 corresponding in construction and arrangement to the springs 10 of Fig. 4.

The strips 15 may be shaped to diverge in the frame 18 of the sash has grooves 19 in its side members, and near the faces of the side member, and it will be noticed that these grooves incline outwardly and away from each other and toward the faces of the side members. Thus a tongue 20 is 1 formed at each face of theside member, and these'tongues engage the side walls of the groove21'of the frame 22. Springs 23 are arranged in the grooves 19 and act normally to press the tongues outward. The side members of the sash are grooved longitudinally, as indicated at 24, on their outer faces at the tongues, to provide additional resiliency and to reduce the surface of the sash frame which engages the side walls of the groove 21.

In Fig. 6 the frame or casing 25 has the groove 26 for receiving the edge of the sash frame 27 sash contacts with the groove only at the outer edges of the groove walls. Grooves 28 are provided in the casing," or frame at each side ofthe groove 26, and the said grooves form between themselves resilient tongues 29 which engage the opposite faces of the sash. As shown springs 30 are arranged in the grooves 28,,these springs corresponding to the springs10, but it is obvious that in any of the constructions these. springs might be omitted, the material of the casing or sash being relied upon to provide resiliency.

In any of the above mentioned constructions, the engaging portion ofthe sash, namely that portion which fits within the groove or casing, is of a width equal to or greaterthan the width of the groove. The width of the engaging portions is such that the tongue portion, namely the edge of the sash frame, could not normally. enter the groove, and the walls of the groove or engaging portion or tongue is made resilient to permit such engagement. Thus a tight engagement is provided for at all times. regardless of Wear, and weather strips may be dispensed with. It is obvious that the sash frame might have the grooves, and the easing the tongues for engaging the grooves,'orl

that the sash might have reduced tongues for engaging grooves in the casing.

The invention in its broadest form consists in providing one of the elements, either the casing or the sash, with groovesfor engagement by tongues on the other; element, said tongues being either reduced .or not as may be desired, and with such a distance between the outer faces of the tongues that the tongues will not normally enter the grooves, and in making of the tongues or It will be noticed that this groove has undercut side walls, so'that the the grooves resilient, to permit such. entrance.

I claim: 1. In wmdows, the combination with a frame member having sash receivmg grooves, of a sash member having stiles normally too wide toenter the grooves of the frame, one of said members being cut to provide resilient tongues separated by grooves to permit the tongues to yield so that the distance between them can be varied to permit the sash to enter the grooves.

2. In windows, a frame and a sash, said frame having grooves for the sash, the stiles of the sash being normally too Wide to enter the grooves, and one of the said members having resilient tongues at the opposite sides thereof mounted to yield with respect to the member to permit the sash to enter the grooves. i i

3. In combination, a window frame havin sash-receiving grooves, and a sash mounted to slide in the grooves,'saidsash having at each side integral resilient tongues for engaging within the. adjacent sash-rewidth such that they will not enter the grooves and being resilient or compressible to permit such entrance.

5. In combination, a window frame and a sash, one of said elements having grooves and the other tongues for engaging within the grooves, said tongues and grooves being normally of such relative width that the tongues will notenter the grooves, and one of said elements being resilient at the point of engagement with the other element to permit the engagement of the tongues with the grooves.

, WILLIAM scor'r SHIELDS.- Witnesses: I

GEO. H. GRIFFITH, IRA F. SMITH. 

